CN104515319B - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
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- CN104515319B CN104515319B CN201310462113.9A CN201310462113A CN104515319B CN 104515319 B CN104515319 B CN 104515319B CN 201310462113 A CN201310462113 A CN 201310462113A CN 104515319 B CN104515319 B CN 104515319B
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- valve
- heat exchanger
- air
- conditioning system
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Abstract
The invention provides an air conditioning system. The air conditioning system comprises a compressor, a four-way valve, an indoor heat exchanger, a throttling element, an outdoor heat exchanger assembly, a first solenoid valve and a second solenoid valve which are sequentially connected; the outdoor heat exchanger assembly comprises an outdoor heat exchanger; the second solenoid valve is connected in series between the indoor heat exchanger and the throttling element; the indoor heat exchanger and the second solenoid valve which are connected in series are connected in parallel with the first solenoid valve, or the indoor heat exchanger, the second solenoid valve and the throttling element which are connected in series are connected with the first solenoid valve in parallel; the four-way valve is equipped with a first valve port, a second valve port, a third valve port and a fourth valve port; the first valve port communicates with a first end port of the outdoor heat exchanger; a second end port of the outdoor heat exchanger communicates with the throttling element; the second valve port communicates with an exhaust valve of the compressor; the third valve port respectively communicates with the first end port and the first solenoid valve of the indoor heat exchanger; the second end port of the indoor heat exchanger communicates with the second solenoid valve; the fourth valve port communicates with the air inlet device of the compressor. According to the air conditioning system, a heat pump type air conditioner can be used for quickly defrosting the outdoor heat exchanger.
Description
Technical field
The present invention relates to refrigerating field, more particularly to a kind of air-conditioning system.
Background technology
Under continuous heating endless form, existing air-conditioning system is hot with releasing often through the absorption heat of heat-storing material
Amount reaches the purpose of continuous heating, but there is following possibility hidden danger reaching continuous defrost in the form of accumulation of heat：1）Accumulation of heat
Material amount of stored heat is not enough, causes to lack heat during continuous heating defrost, causes the returning gas carrying liquid of compressor and the compressor that weares and teares；2）
Through determining to the test of same type type, the leaving air temp effect of accumulation of heat defrost mode is undesirable, in this section of defrost cycle
Between in, have half the time leaving air temp to be more or less the same with EAT, without heat blowout, heating effect is poor during defrost；3）
The accumulation of heat substantive requirements of form redesign regenerative apparatus, and external machine structural adjustment is big, and in addition heat-storing material type selecting and accumulation of heat slot structure set
Meter is complicated, with the presence of leakage, the long-term hidden danger such as rotten.
The content of the invention
In view of the present situation of prior art, it is an object of the invention to provide a kind of air-conditioning system, make the heat pump type air conditioner can
It is quick to realize defrosting frost layer on outdoor heat exchanger.For achieving the above object, technical scheme is as follows：
A kind of air-conditioning system, changes including compressor, cross valve, indoor heat exchanger, restricting element and the outdoor being sequentially connected
Hot device assembly, the air-conditioning system also includes the first magnetic valve and the second magnetic valve；
The outdoor heat exchange device assembly includes outdoor heat exchanger；
Second magnetic valve is connected between the indoor heat exchanger and the restricting element, the interior after series connection
Heat exchanger, the second magnetic valve are in parallel with first magnetic valve, or series connection after the indoor heat exchanger, the second magnetic valve,
Restricting element is in parallel with first magnetic valve；
The cross valve has first to fourth valve port, and first valve port connects the first end of the outdoor heat exchanger
Mouthful, the second port of the outdoor heat exchanger connects the restricting element, and second valve port connects the exhaust of the compressor
End, the 3rd valve port is respectively communicated with the first port and first magnetic valve of the indoor heat exchanger, the indoor heat exchange
The second port of device connects second magnetic valve, and the 4th valve port connects the suction end of the compressor.
More preferably, the outdoor heat exchange device assembly also includes capillary and the 3rd magnetic valve；
The outdoor heat exchanger includes First Heat Exchanger and the second heat exchanger, the First Heat Exchanger and the second heat exchanger string
Connection；
The First Heat Exchanger and second heat exchanger are connected on after the capillary is in parallel with the 3rd magnetic valve
Between.
More preferably, the air-conditioning system also includes the assisted heating device being arranged on the indoor heat exchanger.
Further, the assisted heating device is electric heating tube or radiant panel.
More preferably, the air-conditioning system also includes stop valve；
The stop valve, the indoor heat exchanger and described are in series between the indoor heat exchanger and the cross valve
The stop valve is in series between two magnetic valves.
More preferably, the restricting element is electric expansion valve.
More preferably, the air-conditioning system also includes vapour liquid separator, and the vapour liquid separator is connected on the 4th valve port
And the suction end of the compressor between.
More preferably, the air-conditioning system has refrigeration mode, wherein be under refrigeration mode in the air-conditioning system, it is described
First valve port is respectively turned on the second valve port, the 3rd valve port with the 4th valve port, second magnetic valve, the 3rd magnetic valve and
Restricting element works, and first closed electromagnetic valve.
More preferably, the air-conditioning system has the first heating mode, wherein heating mould in first in the air-conditioning system
Under formula, first valve port is respectively turned on the 4th valve port, second valve port with the 3rd valve port, second magnetic valve,
Three magnetic valves and restricting element work, and first closed electromagnetic valve.
More preferably, the air-conditioning system has the second heating mode, wherein heating mould in second in the air-conditioning system
Under formula, first valve port is respectively turned on the 4th valve port, second valve port with the 3rd valve port, the first magnetic valve work
Make, the restricting element full-gear work, and second magnetic valve and the 3rd closed electromagnetic valve.
More preferably, the air-conditioning system has the second heating mode, wherein heating mould in second in the air-conditioning system
Under formula, first valve port is respectively turned on the 4th valve port, second valve port with the 3rd valve port, the first magnetic valve work
Work, and second magnetic valve and the 3rd closed electromagnetic valve, the restricting element work or closing.
The invention has the beneficial effects as follows：
The air-conditioning system of the present invention, makes heat pump type air conditioner quickly to realize defrosting frost layer on outdoor heat exchanger,
And interior can endlessly supply heat.By being segmented to outdoor heat exchanger, an outdoor heat exchanger part is allowed to evaporate one
Partial condensation, condensation defrost and evaporation endothermic process occur simultaneously, have so both met thermodynamic requirement, also reach to room simultaneously
The purpose of the quick defrost of external heat exchanger.
Description of the drawings
Fig. 1 is the circulatory system figure of the embodiment of air-conditioning system one of the present invention；
Fig. 2 is that air-conditioning system shown in Fig. 1 moves towards figure in the first heating mode runtime system refrigerant；
Fig. 3 is that air-conditioning system shown in Fig. 1 moves towards figure in the second heating mode runtime system refrigerant；
Wherein,
01 compressor；10 indoor heat exchangers；15 cross valves；20 outdoor heat exchangers；25 restricting elements；
32 gas-liquid separators；34 first magnetic valves；35 second magnetic valves；36 assisted heating devices；
41 capillaries；42 the 3rd magnetic valves；50 outdoor heat exchange device assemblies；60 stop valves；70 blower fans；
100 indoor sets；200 off-premises stations.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples pair
The air-conditioning system of the present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining
The present invention, is not intended to limit the present invention.
Referring to figs. 1 to Fig. 3, the embodiment of air-conditioning system one of the present invention includes indoor set 100 and off-premises station 200, indoor set
100 include indoor heat exchanger 10, and off-premises station 200 includes compressor 01, cross valve 15, outdoor heat exchange device assembly 50 and restricting element
25, outdoor heat exchange device assembly 50 includes outdoor heat exchanger 20；Compressor 01, cross valve 15, indoor heat exchanger 10, restricting element
25th, outdoor heat exchanger 20 is in turn connected to form refrigerating circuit, and restricting element 25 is electric expansion valve.
Air-conditioning system also includes the first magnetic valve 34 and the second magnetic valve 35, and the second magnetic valve 35 is connected on indoor heat exchanger
Between 10 and restricting element 25, the indoor heat exchanger 10, the second magnetic valve 35 after series connection is in parallel with the first magnetic valve 34, or string
Indoor heat exchanger 10, the second magnetic valve 35 after connection, restricting element 25 are in parallel with the first magnetic valve 34.
Cross valve 15 has first to fourth valve port（A1,B1,C1,D1）, the first valve port A1 connection outdoor heat exchangers 20
First port, the second port connection restricting element 25 of outdoor heat exchanger 20, the second valve port B1 connects the exhaust end of compressor 01,
3rd valve port C1 is respectively communicated with the first port of indoor heat exchanger 10 and the first magnetic valve 34, the second port of indoor heat exchanger 10
The second magnetic valve 35 is connected, the 4th valve port D1 connects the suction end of compressor 01.Wherein, it is in refrigeration mode in air-conditioning system
When, the entrance of outdoor heat exchanger 20 is the first port of outdoor heat exchanger 20, and the outlet of outdoor heat exchanger 20 is outdoor heat exchanger
20 second port, the outlet of indoor heat exchanger 10 is the first port of indoor heat exchanger 10, and the entrance of indoor heat exchanger 10 is
The second port of indoor heat exchanger 10.Preferably, air-conditioning system also includes stop valve 60, indoor heat exchanger 10 and cross valve 15 it
Between be in series with stop valve 60, be in series with stop valve 60 between the magnetic valve 35 of indoor heat exchanger 10 and second.Stop valve 60 is set, when
When air-conditioning system breaks down, can be ended by stop valve 60, without the need for the refrigerant in system is bled off by keep in repair, convenient behaviour
Make.Air-conditioning system also includes vapour liquid separator 32, and vapour liquid separator 32 is connected on the suction end of the 4th valve port D1 and compressor 01
Between.
More preferably, as a kind of embodiment, outdoor heat exchange device assembly 50 also includes the magnetic valve of capillary 40 and the 3rd
42, outdoor heat exchanger 20 includes the heat exchanger 202 of First Heat Exchanger 201 and second, the heat exchanger 202 of First Heat Exchanger 201 and second
Series connection, is connected between the heat exchanger 202 of First Heat Exchanger 201 and second after capillary 40 is in parallel with the 3rd magnetic valve 42.It is outdoor
Heat exchanger part evaporation part condensation, condensation defrost and evaporation endothermic process occur simultaneously, have so both met thermodynamics
Require, the purpose to the quick defrost of outdoor heat exchanger is also reached simultaneously.
More preferably, as a kind of embodiment, air-conditioning system also includes that the auxiliary being disposed in the interior on heat exchanger 10 adds
Thermal 36, assisted heating device 36 is electric heating tube or radiant panel.Assisted heating device 36 is set, increases indoor heat exchanger 10
Heat supply.
More preferably, as a kind of embodiment, the air-conditioning system has refrigeration mode, wherein being in air-conditioning system
Under refrigeration mode, the power-off of cross valve 15, the first valve port A1 leads respectively with the second valve port B1, the 3rd valve port C1 and the 4th valve port D1
Logical, the second magnetic valve 35, the 3rd magnetic valve 42 and restricting element 25 work, and the first magnetic valve 34 is closed.
Air-conditioning system run refrigeration mode when refrigerant flow direction as shown in figure 1, the direction of arrow be refrigerant flow direction, from
The second valve ports of refrigerant Jing B1 that compressor 01 is discharged enters cross valve 15, and after flowing out from the first valve port A1 the second heat exchanger is entered
202, refrigerant carries out condensation heat release for the first time herein, and gaseous coolant is condensed into gas-liquid two-phase refrigerant, from the second heat exchanger 202
The refrigerant of outflow carries out second condensation heat release by the 3rd magnetic valve 42 into First Heat Exchanger 201；By First Heat Exchanger
With the condensation heat release twice of the second heat exchanger, refrigerant reaches supercooling refrigerant, and the refrigerant Jing refrigerant pipes after being condensed reach throttling unit
Get in heat exchanger 10 after the reducing pressure by regulating flow of part 25 and exchanged heat, be evaporated in heat exchanger 10 indoors, refrigerant is herein
Heat is absorbed, itself undergoing phase transition becomes supersaturation gaseous coolant, afterwards gas-liquid separator is reached by refrigerant pipe, separator is to liquid
State is separated so that gaseous coolant is inhaled into compressor, it is ensured that compressor air suction is without liquid.
More preferably, as a kind of embodiment, air-conditioning system has the first heating mode, wherein being in air-conditioning system
Under heating mode, cross valve 15 is powered, and the first valve port A1 and the 4th valve port D1, the second valve port B1 and the 3rd valve port C1 lead respectively
Logical, the second magnetic valve 35, the 3rd magnetic valve 42 and restricting element 25 work, and the first magnetic valve 34 is closed.
Air-conditioning system in the first heating mode refrigerant flow direction as shown in Fig. 2 the direction of arrow be refrigerant flow direction, from pressure
The second valve ports of refrigerant Jing B1 that contracting machine 01 is discharged enters cross valve 15, and after flowing out from the 3rd valve port C1 heat exchanger 10 is got in,
Refrigerant carries out condensation heat release in heat exchanger 10 indoors, and the heat transfer that compressor 01 brings interior is given, and indoor temperature is obtained
To lifting, realize the effect to indoor heating, refrigerant be condensed in heat exchanger 10 indoors after Jing it is in the conduction state second
Magnetic valve 35, then reaches restricting element 25, and First Heat Exchanger 201 is entered after warp knuckle fluid element reducing pressure by regulating flow, in the first heat exchange
First time evaporation is carried out in device 201, the refrigerant flowed out from First Heat Exchanger 201 is entered through the 3rd magnetic valve 42 of conducting state
Second heat exchanger 202, in the second heat exchanger 202 second evaporation process is carried out.Heat is absorbed herein, due to evaporating temperature
It is very low, when the solidification point less than environment temperature will freeze frosting layer in outer layer condenser surface, by evaporation heating after it is cold
Matchmaker Jing is flowed in gas-liquid separator 32 and is carried out phase separation, and last gaseous coolant is inhaled into compressor 01.
More preferably, as a kind of embodiment, the air-conditioning system has the second heating mode（Heat+defrost）, its
In air-conditioning system be in the second heating mode under, magnetic valve 15 is powered, the first valve port A1 and the 4th valve port D1, the second valve port B1
It is respectively turned on the 3rd valve port C1, the first magnetic valve 34 and restricting element 25 work, and the second magnetic valve 35 and the 3rd magnetic valve
42 close.
After the first heating mode operation a period of time, due to the frost layer progressive additive on the surface of outdoor heat exchanger 20, sternly
The heat exchange of outdoor heat exchanger 20 is had influence on again, rate of heat transfer is largely effected on, and air-conditioning system must carry out defrost, therefore, it is empty
Adjusting system enters the second heating mode, and air-conditioning system refrigerant in the second heating mode is flowed to as shown in figure 3, the direction of arrow is cold
Matchmaker flow direction, the second valve ports of refrigerant Jing B1 that compressor 01 is discharged enters cross valve 15, from the 3rd valve port C1 flow out after Jing the
One magnetic valve 34 enters the restricting element 25 of full-gear, and the gaseous coolant of high temperature is heated in First Heat Exchanger 201
Defrost, then again Jing capillaries 40 do an expenditure and pressure to refrigerant, reduce the saturation pressure of refrigerant, and such refrigerant just can be the
Heat exchange is evaporated in two heat exchangers 202, the heat of a part of absorption air a, part absorbs refrigerant in First Heat Exchanger 201
Heat so that the outlet refrigerant state of the second heat exchanger 202 is in gaseous refrigerant, to flow out from the second heat exchanger 202
Refrigerant sequentially passes through the first valve port A1 and the 4th valve port D1 of cross valve 15 and returns to compressor 01, completes a complete heating power and follows
Ring process.Above thermodynamic cycle is indoor heat exchanger 10, the second magnetic valve 35 and the parallel case of the first magnetic valve 34 after series connection,
That is the corresponding common port of the first magnetic valve 34 and restricting element 25 A points in figure 3.
When the indoor heat exchanger 10 after series connection, the second magnetic valve 35, restricting element 25 are in parallel with the first magnetic valve 34, i.e.,
Refrigerant pipe of the corresponding common port of the first magnetic valve 34 and restricting element 25 between First Heat Exchanger 201 and restricting element 25.
Under the second heating mode, the second valve ports of refrigerant Jing B1 that compressor 01 is discharged enters cross valve 15, flows out from the 3rd valve port C1
Being directly entered in First Heat Exchanger 201 by the first magnetic valve 34 carries out heating defrost, refrigerant afterwards flow direction with connect after
Indoor heat exchanger 10, the second magnetic valve 35 are identical with the parallel case of the first magnetic valve 34；Indoor heat exchanger 10 after series connection,
When two magnetic valves 35, restricting element 25 are in parallel with the first magnetic valve 34, it is under the second heating mode in air-conditioning system, throttling unit
The work of part 25 need not enter full-gear, can also close restricting element 25, and restricting element 25 is closed can reduce heat in throttling unit
Transmit in refrigerant pipe between the magnetic valve 35 of part 25 and second.The high-temperature exhaust air of compressor 01 directly reaches outdoor heat exchange device assembly and enters
Row defrost, improves defrost speed.
In above process, because the second magnetic valve 35 is closed, so without supercooling in indoor heat exchanger 10
Refrigerant passes through, and indoor heat exchanger 10 will not cool down the air for passing through therefrom, and the wherein one end of indoor heat exchanger 10 is direct
With the exhaust end UNICOM of compressor 01, heat can be directly delivered to indoor heat exchanger 10 by connecting tube, at the cycle of defrost
Between in, room air circulation temperature drop will not be very big.In order to increase indoor heat, can indoors on the heat exchanger of side
The radiant panel and electric heating tube of accumulation of heat in collocation, when outdoor heat exchanger 20 is in defrost, after the second magnetic valve 35 is closed, Ke Yitong
The heat that overshoot plate is collected carries out slow exothermic process, or converts electrical current into into the form of heat energy by electrical heating, leads to
The effect of blower fan 70 is crossed, indoor set 100 gives room continuous heat supply.Under the second heating mode, the air quantity of indoor set 100 can be with
Meaning is arranged, without the need for forcing to be set to low windscreen.Designed by this and indoor set heating load is greatly promoted compared to existing technology.
The air-conditioning system of the present invention, makes heat pump type air conditioner quickly to realize defrosting frost layer on outdoor heat exchanger,
And interior can endlessly supply heat.By being segmented to outdoor heat exchanger, an outdoor heat exchanger part is allowed to evaporate one
Partial condensation, condensation defrost and evaporation endothermic process occur simultaneously.Thermodynamic requirement was so both met, had also been reached to room simultaneously
The purpose of the quick defrost of external heat exchanger.Increase assisted heating device on heat exchanger indoors（Such as radiant panel, electric heating tube）, room
The heating capacity of interior machine can faster realize continuous defrost for increase, and the comfortableness of interior is more preferable.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (9)
1. a kind of air-conditioning system, including the compressor, cross valve, indoor heat exchanger, restricting element and the outdoor heat exchange that are sequentially connected
Device assembly, it is characterised in that：
Also include the first magnetic valve and the second magnetic valve；
The outdoor heat exchange device assembly includes outdoor heat exchanger, capillary and the 3rd magnetic valve；
Second magnetic valve is connected between the indoor heat exchanger and the restricting element, the described indoor heat exchange after series connection
Device, the second magnetic valve are in parallel with first magnetic valve, or the indoor heat exchanger after series connection, the second magnetic valve, throttling
Element is in parallel with first magnetic valve；
The cross valve has first to fourth valve port, and first valve port connects the first port of the outdoor heat exchanger, institute
The second port for stating outdoor heat exchanger connects the restricting element, and second valve port connects the exhaust end of the compressor, institute
State first port and first magnetic valve that the 3rd valve port is respectively communicated with the indoor heat exchanger, the of the indoor heat exchanger
Two-port netwerk connects second magnetic valve, and the 4th valve port connects the suction end of the compressor；
The outdoor heat exchange device assembly also includes capillary and the 3rd magnetic valve；
The outdoor heat exchanger includes First Heat Exchanger and the second heat exchanger, and the First Heat Exchanger is connected with the second heat exchanger；
It is connected between the First Heat Exchanger and second heat exchanger after the capillary is in parallel with the 3rd magnetic valve；
The air-conditioning system has the first heating mode, wherein being under the first heating mode in the air-conditioning system, described the
One valve port is respectively turned on the 4th valve port, second valve port with the 3rd valve port, second magnetic valve, the 3rd magnetic valve and section
Fluid element works, and first closed electromagnetic valve；
The air-conditioning system has the second heating mode, wherein being under the second heating mode in the air-conditioning system, described the
One valve port is respectively turned on the 4th valve port, second valve port with the 3rd valve port, first electromagnetic valve work, and described second is electric
Magnet valve and the 3rd closed electromagnetic valve；
From the 3rd valve port flow out refrigerant Jing can the first magnetic valve described in Jing carry out in the First Heat Exchanger plus
Thermalization frost, again after the capillary-compensated decompression described in, the refrigerant can be evaporated and change refrigerant in second heat exchanger
Heat, the heat of a part of absorption air a, part absorbs the heat of refrigerant in the First Heat Exchanger, the outdoor heat exchanger one
Evaporate part condensation in part so that condensation defrost and evaporation endothermic process synchronously occur, and realize the quick defrost of outdoor heat exchanger.
2. air-conditioning system according to claim 1, it is characterised in that：
Also include the assisted heating device being arranged on the indoor heat exchanger.
3. air-conditioning system according to claim 2, it is characterised in that：
The assisted heating device is electric heating tube or radiant panel.
4. air-conditioning system according to claim 1, it is characterised in that：
Also include stop valve；
The stop valve is in series between the indoor heat exchanger and the cross valve, the indoor heat exchanger is electric with described second
The stop valve is in series between magnet valve.
5. the air-conditioning system according to any one of claim 1-4, it is characterised in that：
The restricting element is electric expansion valve or capillary.
6. air-conditioning system according to claim 5, it is characterised in that：
Also include vapour liquid separator, the vapour liquid separator be connected on the 4th valve port and the compressor suction end it
Between.
7. air-conditioning system according to claim 1, it is characterised in that：
The air-conditioning system has refrigeration mode, wherein the air-conditioning system be in refrigeration mode under, first valve port with
Second valve port, the 3rd valve port are respectively turned on the 4th valve port, second magnetic valve, the 3rd magnetic valve and restricting element work
Make, and first closed electromagnetic valve.
8. air-conditioning system according to claim 1, it is characterised in that：
The air-conditioning system in the second heating mode, the indoor heat exchanger, second magnetic valve after series connection with it is described
First magnetic valve is in parallel, the restricting element full-gear work.
9. air-conditioning system according to claim 1, it is characterised in that：
The air-conditioning system in the second heating mode, the indoor heat exchanger, second magnetic valve after series connection, the section
Fluid element is in parallel with first magnetic valve, and the restricting element works or closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462113.9A CN104515319B (en) | 2013-09-30 | 2013-09-30 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462113.9A CN104515319B (en) | 2013-09-30 | 2013-09-30 | Air conditioning system |
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| CN104515319A CN104515319A (en) | 2015-04-15 |
| CN104515319B true CN104515319B (en) | 2017-04-12 |
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| CN201310462113.9A Active CN104515319B (en) | 2013-09-30 | 2013-09-30 | Air conditioning system |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423447A (en) * | 2015-12-10 | 2016-03-23 | 广东志高空调有限公司 | Outdoor unit used for heat pump type air conditioner and heat pump type air conditioner |
| CN106595118A (en) * | 2016-12-27 | 2017-04-26 | 珠海格力电器股份有限公司 | Air-cooled cold and hot water unit |
| CN106918105A (en) * | 2017-04-27 | 2017-07-04 | 广东美的制冷设备有限公司 | Air-conditioning system |
| CN107490090B (en) * | 2017-09-27 | 2020-08-04 | 广东美的暖通设备有限公司 | Air conditioner |
| CN108007016A (en) * | 2017-10-30 | 2018-05-08 | 珠海格力电器股份有限公司 | The control method of heat pump system and heat pump system |
| CN112665216A (en) * | 2020-11-27 | 2021-04-16 | 珠海格力电器股份有限公司 | Heat pump system and defrosting mode thereof |
| CN114353398B (en) * | 2021-12-02 | 2023-04-14 | 珠海格力电器股份有限公司 | Air conditioner for controlling flow path to defrost condenser and defrosting method |
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| JP2001248931A (en) * | 2000-03-06 | 2001-09-14 | Fujitsu General Ltd | Air conditioner |
| CN101501417A (en) * | 2006-08-03 | 2009-08-05 | Lg电子株式会社 | Air conditioner and controlling method thereof |
| CN200972294Y (en) * | 2006-11-17 | 2007-11-07 | 陈则韶 | Wind heat pump with anti-frost heat exchange pipe |
| EP2184561A1 (en) * | 2008-11-10 | 2010-05-12 | Lg Electronics Inc. | Air conditioning system |
| CN201335568Y (en) * | 2008-12-27 | 2009-10-28 | 广东美的电器股份有限公司 | Defrosting system for outdoor unit of air conditioner |
| CN203550269U (en) * | 2013-09-30 | 2014-04-16 | 珠海格力电器股份有限公司 | Air conditioning system |
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